Lamp for road-vehicles



F. R. DUCKWORTH. LAMP FO R ROAD VEHICLES.

APPLICATION FILED MAY I9, 1919.

Patented Feb. 10, 1920.

W iZIzess es.

7 l, The adapter comprises a UNITED STATES PATENT oEEIcE.

FREDERICK RICHARD DUGKWORTH, 0F DUNADRY, IRELAND.

LAMP FOR ROAD-VEHICLES.

To all whom it may concern:

Be it known that I, FREDERICK RICHARD DUGKWORTH, a subject of the King of Great Britain and Ireland, residing at Dunadry, county Antrim, Ireland, have invented certain new and useful Im rovements Relating to Lamps for Road-Vehicles, of which the following is a specification.

My invention relates to vehicle lamps and its object is to provide an improved adapter whereby vehicle lamps such as are constructed to burn candles can be readily and cheaply adapted or convertedto use acetylene or other gas as a luminant.

The invention consists of an adapter for adapting vehicle lamps to burn gas, in which provision is made whereby the gas burner can be located within the lamp at'the correct position and height relatively to the lamp reflectors irrespective of whether the usual burner fittings inside the lamp are removed or not.

It further consists of an adapter compris-' ing a tube capable of passing through the usual bracket tube of the lamp and of being secured therein, one end of the tube being adapted to be connected, in suitable manner, with a source of gas supply and the other end being made to receive a gas burner and a hollow dome which latter insures the burner being located in proper position over the usual fittings in the lamp.

I will now particularly describe my invention with reference to the illustrations on the annexed sheet of drawings whereon:-

Figure l is a sectional view of the adapter for gas lighting and,

Fig. 2 shows an ordinary carriage lamp made for candle illumination but having the gas adapter fitted therein.

screw threaded at its end a 'and provided thereat with a nipple a or other means, for a flexible pipe connection, such as b for example, leading from an acetylene gas generator or illuminating gas supply, (not shown). At its upper end a the tube a is internally screw threaded to receive a gas burner 0 tube a externally from some other suitable source of and also externally screw threaded to receive a dome d in the manner shown. On the screw threaded end a I provide a washer or flange f adapted to enter the usual tapered tube 9 of the lamp 9 (see Fig. 2).

' therein with the lower edge d of the dome d resting on the floor of the lamp g. The dome d goes over the projecting portion 9 of the candle fitting, so that the adapter can be fitted into any existing candle lamp, and it is so made as to position the'gas burner c at the proper level-in relation to the reflectors of the lamp. The washer or flange f besides acting as an abutment'for the securing nut it also serves to position the tube a centrally within the lamp tube 9 It will be apparent from the foregoing that I have provided an adapter for converting lamps to enable acetylene orother gas to be used as a luminant which is simple to construct and is readily fitted and adjusted in place in the lamp to give the best lighting efliciency and which can also be manufactured easily and cheaply.

Having now fully described my invention what I claim and desire to secure by Letters Patent is The combination with a vehicle lamp constructed to burn candles of a as adapter comprising a tube extending t rough the existing bracket tube on the lamp, a nipple at one "end'of the tube adapted to be connected with a source of luminating gas supply, a gas burner at theother end of the tube within the lamp, a dome on the tube at the burner end, a washer for centrally positionin the tube in the lamp bracket tube, and a in presence of two witnesses.

' FREDERICK RICHARD nucxwonrn,

Witnesses:

J. BOOTH, ANDREW HAMILTON.

Specification of Letters Patent. I Patented Feb. 10, 1920. Application filed May 19, 1919. Serial No. 298,268. i 

